On February 10, 2020, February 24, 2020, and March 24, 2020, three separate private securities class action lawsuits were filed against the Company in the U.S. District Court for the Northern District of Oklahoma, its former Chief Executive Officer, Tom Gentile III, former Chief Financial Officer, Jose Garcia, and former Controller (principal accounting officer), John Gilson. On April 20, 2020, the Class Actions were consolidated by the court (the “Consolidated Class Action”), and on July 20, 2020, the plaintiffs filed a Consolidated Class Action Complaint which added Shawn Campbell, the Company’s former Vice President for the B737NG and B737 MAX program, as a defendant. Allegations in the Consolidated Class Action include (i) violations of Section 10(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Rule 10b-5 promulgated thereunder against the Company and Messrs. Gentile, Garcia, and Gilson, (ii) violations of Section 20(a) of the Exchange Act against the individual defendants, and (iii) violations of Section 10(b) of the Exchange Act and Rule 10b-5(a) and (c) promulgated thereunder against all defendants.

On June 11, 2020, a shareholder derivative lawsuit (the “Derivative Action 1”) was filed against the Company (as nominal defendant), all members of the Company’s then serving Board of Directors, and Messrs. Garcia and Gilson in the U.S. District Court for the Northern District of Oklahoma. Allegations in the Derivative Action 1 include (i) breach of fiduciary duty, (ii)

abuse of control, and (iii) gross mismanagement. On October 5, 2020, a shareholder derivative lawsuit (the “Derivative Action 2” and, together with Derivative Action 1, the “Derivative Actions”) was filed against the Company (as nominal defendant), all then serving members of the Company’s Board of Directors, and Messrs. Garcia and Gilson in the Eighteenth Judicial District, District Court of Sedgwick County, Kansas. Allegations in the Derivative Action 2 include (i) breach of fiduciary duty, (ii) waste of corporate assets, and (iii) unjust enrichment.

The facts underlying the Consolidated Class Action and Derivative Actions relate to the accounting process compliance independent review (the “Accounting Review”) discussed in the Company’s January 30, 2020 press release and described under Management's Discussion and Analysis of Financial Condition and Results of Operations - Accounting Review in Part II, Item 7 of the Annual Report on Form 10-K for the year ended December 31, 2019, and its resulting conclusions. The Company voluntarily reported to the SEC the determination that, with respect to the third quarter of 2019, the Company did not comply with its established accounting processes related to potential third quarter contingent liabilities received after the quarter-end. On March 24, 2020, the Staff of the SEC Enforcement Division informed the Company that it had determined to close its inquiry without recommending any enforcement action against the Company. In addition, the facts underlying the Consolidated Class Action and Derivative Actions relate to the Company’s disclosures regarding the B737 MAX grounding and Spirit’s production rate (and related matters) after the grounding.

On September 18, 2020, the Company and individual defendants filed a motion to dismiss the Consolidated Class Action. That motion was granted by the U.S. District Court on January 7, 2022, which denied leave to amend and dismissed the Consolidated Class Action with prejudice. On February 4, 2022, the plaintiffs in the Consolidated Class Action appealed this decision to the Tenth Circuit Court of Appeals (the “Appellate Court”). On August 21, 2023, the Appellate Court affirmed the dismissal of the Consolidated Class Action.

On May 3, 2023, a private securities class action lawsuit was filed in the U.S. District Court for the Southern District of New York against the Company, its former Chief Executive Officer, Tom Gentile III, and its Senior Vice President and Chief Financial Officer, Mark J. Suchinski. The lawsuit was brought on behalf of certain purchasers of securities of the Company, who allege purported misstatements and omissions concerning alleged faulty production controls and the alleged incorrect installation of fittings on certain B737 MAX planes (the “Securities Class Action”). The specific claims in the Securities Class Action include (i) violations of Section 10(b) of the Exchange Act and Rule 10b-5 promulgated thereunder against all defendants, and (ii) violations of Section 20(a) of the Exchange Act against the individual defendants. An Amended Complaint was filed on December 19, 2023. The Company believes that the claims in this lawsuit are without merit and intends to defend against them vigorously.

Spirit is also involved in litigation in the Appellate Court with its former Chief Executive Officer, Larry Lawson over Lawson's disputed violation of a restrictive covenant in his retirement and consulting agreement. On October 19, 2021, the U.S. District Court for the District of Kansas (the “District Court”) ruled in favor of Lawson and awarded him $44.8 for benefits withheld in connection with the disputed violation, as well as post-judgment interest at the rate of 4.25%.

Spirit appealed the judgment to the Appellate Court. On February 27, 2023, the Appellate Court issued an opinion reversing the District Court decision and concluding that Lawson had violated the terms of the restrictive covenant and remanded for the District Court to address whether the restrictive covenant that Lawson violated was enforceable under Kansas law. On June 15, 2023, the District Court held that the restrictive covenant was enforceable as a matter of Kansas law. The District Court entered judgment in favor of Spirit on June 27, 2023. Lawson has appealed the District Court’s latest decision, and this matter is fully briefed by both parties before the Appellate Court. Spirit will continue to defend its position vigorously on appeal. A liability for the full amount of the award issued on October 19, 2021, plus accrued interest through March 28, 2023, was recognized and remains accrued in the Consolidated Balance Sheets as of December 31, 2023 and December 31, 2022.

From time to time, the Company receives requests for information from government agencies in connection with their regulatory or investigational authority. While certain requests of this type are received in the ordinary course of business, the Company has also received information and document requests related to the January 5, 2024 Alaska Airlines incident, the B737 MAX 9 door plug, and safety and quality processes in B737 MAX line production. These include requests to assist the

government in investigations or audits. The Company reviews such requests and notices and takes appropriate action. Additionally, the Company is subject to federal and state requirements for protection of the environment, including those for disposal of hazardous waste and remediation of contaminated sites. As a result, the Company is required to participate in certain government investigations regarding environmental remediation actions. The Company is currently unable to reasonably estimate any impact this incident, including any impacts of investigations, will have on our financial position, results of operations and cash flows.

In addition to the items addressed above, from time to time, the Company is subject to, and is presently involved in, litigation, legal proceedings, or other claims arising in the ordinary course of business. While the final outcome of the matters cannot be predicted with certainty, considering, among other things, the meritorious legal defenses available, the Company believes that, on a basis of information presently available, none of these items, when finally resolved, will have a material adverse effect on the Company’s long-term financial position or liquidity.

The Company receives, and is currently subject to, customer and vendor claims arising in the ordinary course of business, including, but not limited to, those related to product quality and late delivery. The Company accrues for matters when losses are deemed probable and reasonably estimable. In evaluating matters for accrual and disclosure purposes, the Company takes into consideration multiple factors including without limitation its historical experience with matters of a similar nature, the specific facts and circumstances asserted, the likelihood of an unfavorable outcome, and the severity of any potential loss. Any accruals deemed necessary are reevaluated at least quarterly and updated as matters progress over time.

The Company has evaluated and refined management’s original estimate of costs related to rework on the B787 aircraft, including a preliminary assessment related to rework on the forward section of the fuselage, for which the Company identified an additional fit and finish issue in the prior year. The Company continues to coordinate with Boeing to complete the necessary rework.

On October 12, 2023, the Company entered into a Memorandum of Agreement (the “2023 MOA”) with Boeing. Among other things, the 2023 MOA includes a broad release of liability and claims through October 12, 2023, by both parties relating to Boeing's Commercial Airplanes division and its airplane programs under the General Terms Agreement for the B787 program and the General Terms Agreement for the B737, B747, B767, and B777 programs.

On October 12, 2023, the Company entered into the 2023 MOA with Boeing. Among other things, the 2023 MOA establishes certain recurring shipset price increases for the B787, and as a result the Company reversed certain liabilities, including $205.6 of forward losses and $154.6 of material right obligation related to the B787 program in the fourth quarter of 2023.

During the fourth quarter, the Company updated its estimated cost to satisfy customer firm orders on the A350 and A220 programs. Based on these estimates, and management’s evaluation of key macroeconomic assumptions including the probability that these performance obligations would be exercised, management determined that it is probable each of these programs' performance obligations will extend beyond the period of time for which the Company has previously recorded forward losses, which was previously the end of 2025. As a result, the Company recorded incremental forward losses in the fourth quarter of $12.0 on the A220 Wing program for production of expected firm orders through October 2027. Additional losses beyond what has been reserved could occur if there are unexpected changes to current assumptions in macroeconomic factors and the impact these may have on the Company's cost to complete all firm orders, ongoing pricing discussions with its customers, and increases to our customers’ firm orders. As a result, while the Company does not believe incremental losses beyond those currently recorded are evident, it is reasonably possible one or more of these programs could be performed at a loss incremental to forward losses previously recorded for production outside of the timeframe or for orders that may be placed in addition to those assessed as of December 31, 2023 highlighted above. The Company continues to evaluate all options to

On April 12, 2023, the Company issued a notice of escapement to Boeing related to the quality issue on the B737 Vertical Fin Attach Fittings. The remediation of the quality issue requires the Company to rework B737 units within its production system and reimburse Boeing for repairs on previously delivered units in their factory and warranty costs related to units in service. As of June 29, 2023, the Company had completed the required rework on available units located at its factory in Wichita, KS. The impact to production costs is reflected within the reported total gross margins and did not materially change from the preliminary cost estimate of approximately $31.0 estimated as of March 31, 2023. The Company made an estimate of the cost to Boeing for the units repaired to date of $23.0 for the period ended June 29, 2023 and recorded this amount as contra revenue. On October 12, 2023, the Company entered into the 2023 MOA with Boeing. Among other things, the 2023 MOA includes a broad release of liability and claims through October 12, 2023, by both parties relating to Boeing's Commercial Airplanes division and its airplane programs under the General Terms Agreement for the B787 program and the General Terms Agreement for the B737, B747, B767, and B777 programs. As a result, the Company reversed the $23.0 contra revenue adjustment recorded in the three months ended June 29, 2023 during the three months ending December 31, 2023.

The Company was required to maintain $22.3 and $19.6 of restricted cash as of December 31, 2023 and December 31, 2022, respectively, related to certain collateral requirements for obligations under its workers’ compensation programs. Restricted cash is included in "Other assets" in the Company's Consolidated Balance Sheet.

The Company has entered into customary indemnification agreements with its directors, and its bylaws and certain executive employment agreements include indemnification and advancement provisions. Under the bylaws and any applicable agreement, the Company agrees to indemnify individuals against claims arising out of events or occurrences related to that individual’s service as the Company’s agent or the agent of any of its subsidiaries to the fullest extent legally permitted.

The Company has agreed to indemnify parties for specified liabilities incurred, or that may be incurred, in connection with transactions they have entered into with the Company. The Company is unable to assess the potential number of future claims that may be asserted under these indemnities, nor the amounts thereof (if any). As a result, the Company cannot estimate the maximum potential amount of future payments under these indemnities and therefore, no liability has been recorded.

Provisions for estimated expenses related to service and product warranties and certain extraordinary rework are evaluated on a quarterly basis. These costs are accrued and are recorded to unallocated cost of goods sold. These estimates are established using historical information on the nature, frequency, and average cost of warranty claims, including the experience of industry peers. In the case of new development products or new customers, the Company considers other factors including the experience of other entities in the same business and management judgment, among others. Service warranty and extraordinary work is reported in current liabilities and other liabilities on the Company's Condensed Consolidated Balance Sheets.

The warranty balance presented in the table below includes unresolved warranty claims that are in dispute in regard to their value as well as their contractual liability. The Company estimated the total costs related to some of these claims; however, there is significant uncertainty surrounding the disposition of these disputed claims and as such, the ultimate determination of the provision’s adequacy requires significant management judgment. The amount of the specific provisions recorded against disputed warranty claims was $2.3 as of December 31, 2023 and December 31, 2022. These specific provisions represent the Company’s best estimate of probable warranty claims. Should the Company incur higher than expected warranty costs and/or discover new or additional information related to these warranty provisions, the Company may incur additional charges that exceed these recorded provisions. The Company utilized available information to make appropriate assessments, however the

Company recognizes that data on actual claims experience is of limited duration and therefore, claims projections are subject to significant judgment. The amount of the reasonably possible disputed warranty claims in excess of the specific warranty provision was $3.4 as of December 31, 2023 and December 31, 2022.

Since its incorporation, Spirit has periodically utilized City of Wichita issued Industrial Revenue Bonds (“IRBs”) to finance self-constructed and purchased real property at its Wichita site. Tax benefits associated with IRBs include provisions for a ten-year complete property tax abatement and a Kansas Department of Revenue sales tax exemption on all IRB funded purchases. Spirit purchased these IRBs so they are bondholders and debtor / lessee for the property purchased with the IRB proceeds.